Question

What do you understand about the coastline?

Answer 1

Hint: The coast, also known as the coastline or beach, is defined as the area where land meets the sea or ocean, or as a line forming the land-ocean or lake-ocean boundary. There are approximately \[620,000\] kilometres \[\left( {390,000{\text{ }}miles} \right)\] of shoreline on the planet. A shoreline's exact perimeter cannot be measured since coasts are continually changing; this measurement issue is known as the coastline paradox.

Complete answer:
The phrase "coastal zone" is used to describe a location where sea and land processes interact. The terms coast and coastal are frequently used to indicate a physical place or region that is located on a coastline (for example, New Zealand's West Coast or the United States' East, West, and Gulf Coasts).
Coasts are significant zones in natural ecosystems because they are often home to a diverse range of biodiversity, including wetlands, which are vital for bird populations, and mangroves and seagrass, which provide nursery habitat for fish and other aquatic species. Some coasts face the open ocean and are referred to as pelagic coasts, while others are located in a gulf or harbour and are referred to as protected coasts. A shore, on the other hand, can refer to land adjacent to any significant body of water, such as oceans (seashore) or lakes (lakeshore).

Note:
However, because of the economic importance of coasts, many of these towns are vulnerable to climate change, which results in changes in extreme weather and sea level rise, as well as related challenges including coastal erosion, saltwater intrusion, and coastal flooding. Other coastal challenges, such as marine pollution and trash, as well as the degradation of marine ecosystems, hinder human usage of the shore and put coastal ecosystems at risk.